CN211148193U - Dust distributing and distributing device for testing atmosphere monitoring equipment and testing device - Google Patents
Dust distributing and distributing device for testing atmosphere monitoring equipment and testing device Download PDFInfo
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- CN211148193U CN211148193U CN201921517132.6U CN201921517132U CN211148193U CN 211148193 U CN211148193 U CN 211148193U CN 201921517132 U CN201921517132 U CN 201921517132U CN 211148193 U CN211148193 U CN 211148193U
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Abstract
The utility model discloses a dispersion cloth dirt device that test atmosphere monitoring facilities used for provide the test for atmosphere monitoring facilities's host computer uniformly and use the fluid that contains the particulate matter, include: the main body structure is connected to a host of the atmosphere monitoring equipment; the main runner of the main structure is internally provided with a support and fan blades, the support is fixed in the main structure, the fan blades are connected to the support, the fluid containing the particulate matters for testing is conveyed to the lower part of the fan blades, and when the main machine works through the atmosphere monitoring equipment, the sampling air flow in the main runner of the main structure blows the fan blades to perform stirring action, and the fluid containing the particulate matters for testing is uniformly distributed in the sampling air flow. The utility model relates to a can realize the dispersion for the online sampling equipment of test and distribute dirt, the dispersion cloth dirt device that test atmosphere monitoring facilities used. Furthermore, the utility model also discloses an atmosphere monitoring facilities's testing arrangement.
Description
Technical Field
The utility model relates to a test technical field of online ambient air sampling equipment especially relates to one kind and can realize the branch for testing online sampling equipment and distribute dirt, and the branch that test atmosphere monitoring facilities used distributes dirt device and testing arrangement.
Background
Aiming at an atmospheric sampling device, in particular to an online environment atmospheric particulate monitoring device, the existing test verification mode is to place the device in an actual atmospheric environment and select a proper time period to carry out long-period test. The testing method has the advantages of long testing period, high cost and poor testing reproducibility, and is not beneficial to technical improvement and rapid industry development.
The applicant filed an application on 24/5/2019 with the publication numbers: 110082270A, application number: 201910439212.2, the name is: a multifunctional linked temperature, pressure and humidity equalizing dual-mode gaseous environment simulation system capable of adding dust, which is disclosed in the accompanying drawings 1-4 and the description thereof, particularly the detailed implementation modes [0035] - [0054], particularly the detailed implementation modes [0039], [0048], [0049], wherein the detailed implementation modes [0039 ]: the utility model discloses a test the great equipment of volume ratio, include: two important parts of cutting head and host computer, when needing to test whole atmospheric particulates sampling equipment, can place cutting head and host computer at second box 21 and first box 11 respectively, and pass the sampling passageway between cutting head and the host computer interface channel 3 has so realized testing on the whole to atmospheric particulates sampling equipment. … … [0048 ]: a dust insulation device is arranged at the communication position of the second box bodies 21 and the second circulation pipeline 232, and after the second temperature and humidity atmosphere in the second box bodies 21 is subjected to dust insulation and filtration through the dust insulation device, the second temperature and humidity atmosphere is circulated through the second circulation pipeline 232. Through setting up it is a plurality of to prevent the dust device that ends dirt between the second box 11, simultaneously, through setting up the dust device ends dirt can realize simulating various temperature and humidity pressure environment fast in the laboratory, lets atmospheric particulates sampling equipment can be at the test performance that ends dirt of various temperature and humidity pressure environment.
It should be noted that a dust insulation device is disposed at a communication position between the first tank 11 and the first circulation pipe 132, and a dust insulation device is disposed at a communication position between the second tank 21 and the second circulation pipe 232. Under the condition, the atmospheric particulate sampling equipment can be tested under the completely dust-free condition to meet the test standard, in addition, the test under the dust-free condition belongs to a test of a specific situation, under the condition that no particulate matters are added, no matter what state the first temperature-humidity-pressure atmosphere and the second temperature-humidity-pressure atmosphere are, the particulate matter data measured by the atmospheric particulate sampling equipment should be 0, the measurement deviation must be in a proper error range, otherwise, the test of the atmospheric particulate sampling equipment is not accurate.
In the applicant's this utility model patent application, disclose clear and definite technical scheme, can carry out independent control for the inside warm and humid atmosphere of first box 11 and second box 12, consequently can reduce the volume in test space widely, can ensure experimental pressure-bearing condition, can also make things convenient for production manufacturing, transportation and deposit, reduce as far as possible manufacturing, use cost's multi-functional linkage samming voltage-sharing and humidity-sharing can add bimodulus dirt gaseous state environment simulation system.
The applicant's patent can well test the accuracy of the atmospheric monitoring device in various wet and warm pressure environments in a dust-free state, that is, the measured particulate data of the atmospheric particulate sampling device should be 0, and the measurement deviation must be within a proper error range, however, the accuracy test in a dust-added state in the world still is in a groping stage at present, and a better solution is not found.
In the prior art, two difficulties are caused in uniformly adding dust to an atmospheric particulate sampling device, namely how to accurately add dust and how to uniformly add dust. The two difficulties are the technological gaps in the current technical field. The publication number is: 110082270A, application number: 201910439212.2, the name is: the patent application of the multifunctional linked temperature-equalizing, pressure-equalizing and humidity-equalizing dust-adding dual-mode gaseous environment simulation system is characterized in that the dual-mode gaseous environment simulation system is adopted, a cutting head and a host of an atmosphere sampling device are separately tested, a sampling channel is contained in a connecting channel, and sealing structures are arranged in gaps between two ends of the sampling channel and the connecting channel. Therefore, when the dust is required to be added to the atmosphere sampling device, the dust can be directly added to the main machine of the atmosphere sampling device only by opening the connecting channel, but when the dust is added, how to accurately add the dust and how to uniformly add the dust still belong to the technical blank of no research.
Therefore, a dust dispersing and distributing device for testing an atmosphere monitoring device, which can disperse dust for testing an online sampling device, is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize the dispersion for the online sampling equipment of test and distribute dirt, the dispersion cloth dirt device that test atmosphere monitoring facilities used.
In order to realize the purpose, the utility model provides a technical scheme does: the utility model provides a dispersion cloth dirt device that test atmosphere monitoring facilities used for when testing atmosphere monitoring facilities, connect on atmosphere monitoring facilities's host computer, evenly provide the fluid that contains the particulate matter of test for atmosphere monitoring facilities's host computer, include:
the main body structure is a hollow structure and is connected to a host of the atmosphere monitoring equipment;
the dust distribution mechanism is arranged inside a main flow channel of the main structure and comprises a support and fan blades, the support is fixed in the main structure, the fan blades are connected to the support, the fluid containing the particulate matters for testing is conveyed to the position below the fan blades and passes through the main machine of the atmosphere monitoring equipment during working, the sampling air flow inside the main flow channel of the main structure blows the fan blades to perform stirring action, and the fluid containing the particulate matters for testing is uniformly distributed in the sampling air flow.
The dust feeding device comprises a main structure and is characterized by further comprising a dust feeding pipeline, wherein an inlet of the dust feeding pipeline is connected with an external dust supply device, and an outlet of the dust feeding pipeline extends into the main structure and is located below the fan blades.
The part of the dust conveying pipeline, which is positioned in the main body structure, is of a flexible structure.
The dust feeding pipeline is positioned in the main body structure, and the part of the dust feeding pipeline penetrates through the inner ring of the bearing to be connected with the fan blades.
The outlet of the dust conveying pipeline is designed to be of an inverted trapezoidal structure.
In order to realize the above object, the utility model provides a testing arrangement of atmosphere monitoring facilities for test atmosphere monitoring facilities, connect on atmosphere monitoring facilities's host computer, accurately, evenly provide the fluid that contains the particulate matter of test usefulness for atmosphere monitoring facilities's host computer, include:
a dust supply device for providing a precise weight of a particulate matter-containing fluid for testing;
a distributed dust device connected to the dust supply device, comprising:
the main body structure is a hollow structure and is connected to a host of the atmosphere monitoring equipment;
the dust distribution mechanism is arranged inside a main flow channel of the main structure and comprises a support and fan blades, the support is fixed in the main structure, the fan blades are connected to the support, the fluid containing the particulate matters for testing is conveyed to the position below the fan blades and passes through the main machine of the atmosphere monitoring equipment during working, the sampling air flow inside the main flow channel of the main structure blows the fan blades to perform stirring action, and the fluid containing the particulate matters for testing is uniformly distributed in the sampling air flow.
The dust feeding device comprises a main structure and is characterized by further comprising a dust feeding pipeline, wherein an inlet of the dust feeding pipeline is connected with an external dust supply device, and an outlet of the dust feeding pipeline extends into the main structure and is located below the fan blades.
The part of the dust conveying pipeline, which is positioned in the main body structure, is also suspended on the inner wall of the dust conveying pipeline through a bracket.
The dust feeding pipeline is positioned in the main body structure, and the part of the dust feeding pipeline penetrates through the inner ring of the bearing to be connected with the fan blades.
The outlet of the dust conveying pipeline is designed to be of an inverted trapezoidal structure.
Compared with the prior art, because the utility model discloses in the dispersion cloth dirt device that atmosphere monitoring facilities used, include: the main body structure is a hollow structure and is connected to a host of the atmosphere monitoring equipment; the dust distribution mechanism is arranged inside the main structure and comprises a support and fan blades, the support is fixed on the inner wall of the main structure, the fan blades are connected to the support, the fluid containing the particulate matters for testing is conveyed to the lower portion of the fan blades and passes through the main machine of the atmosphere monitoring equipment during working, the sampling air flow inside the main flow channel of the main structure blows the fan blades to perform stirring action, so that the fluid containing the particulate matters for testing is uniformly distributed in the sampling air flow.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.
Drawings
Fig. 1 is a schematic view illustrating an embodiment of a dust dispersing and distributing device for testing an atmosphere monitoring apparatus according to the present invention.
Fig. 2 is a schematic view showing the dust dispersing and distributing device for testing the atmosphere monitoring device shown in fig. 1 connected with the atmosphere monitoring device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a dust dispersing and distributing device 100 for testing an atmosphere monitoring device is provided, which is used for connecting to a host of the atmosphere monitoring device 50 when testing the atmosphere monitoring device 50, and uniformly supplying a fluid containing particulate matters for testing to the host of the atmosphere monitoring device 50. The atmospheric monitoring device 50, especially an online atmospheric monitoring device, needs to be tested before shipment and periodically during service in order to ensure the accuracy of the test data output by the sampling device and prevent the data of the sampling device from being falsified.
Taking online atmosphere monitoring equipment as an example for illustration, an atmospheric particulate enrichment module is usually arranged in the equipment, specifically, the atmospheric particulate enrichment module is usually a paper filter membrane (hereinafter, the paper filter membrane is exemplarily illustrated), ambient air is sucked into a cutter by a sampling pump at a constant current and is cut into particles meeting the technical requirements, the particles in the ambient air are finally enriched on the paper filter membrane through a sampling channel, the particles enriched on the paper filter membrane are irradiated by β rays in the prior art, at the moment, the β ray intensity is attenuated, and the weight of the particles can be calculated through the determination of β rays.
The particulate cutter is accurate assuming that the particulate cutter has been precisely calibrated before leaving the factory (calibration of the particulate cutter is not within the scope of the present invention). Therefore, when the atmospheric monitoring equipment is calibrated, only the host of the atmospheric monitoring equipment needs to be tested. Before leaving a factory or in the using process of the atmospheric particulate sampling equipment, the reliability, stability and accuracy of the work of the atmospheric particulate sampling equipment need to be tested, and the atmospheric particulate sampling equipment can be placed in a place with the publication number as described in the background technology: 110082270A, application number: 201910439212.2, the name is: the multifunctional linked temperature-equalizing, pressure-equalizing, humidity-equalizing and dust-adding dual-mode gaseous environment simulation system is used for testing.
When a host of an atmosphere monitoring device is tested, the current technology is generally to adjust temperature and humidity parameters of an environment where an atmosphere particulate matter sampling device is located, and in a state of adding dust 0 (namely, no particulate matter is added), β rays detect that the weight of the atmosphere particulate matter accumulated on a paper filter membrane is close to 0, and the difference is within an error allowable range, so that the accuracy of the sampling device is tested.
The dispersed dust distribution device 100 for testing the atmosphere monitoring apparatus includes:
the main body structure 1 is a hollow structure, and the main body structure 1 is connected to a host of the atmosphere monitoring equipment 50; specifically, the main body structure 1 is a tubular structure, which can be hermetically connected to the upper end (sampling channel) of the sampling channel of the main body of the atmosphere monitoring device 50, and can uniformly supply dust to the main body of the atmosphere monitoring device 50 instead of a particulate cutter. In the present invention, "dust" means particulate matter and is supplied in the form of a fluid containing the particulate matter.
In a preferred embodiment, the main body structure 1 has an outer shape conforming to the size of the sampling channel of the main body of the atmosphere monitoring device 50, and preferably is threadably connected to the sampling channel to achieve a sealed and smooth transition connection with the sampling channel, so as not to cause additional resistance to the flow of the fluid containing particles.
Disperse cloth dirt mechanism 2, disperse cloth dirt mechanism 2 locates inside major structure 1's sprue, including support 21 and flabellum 22, support 21 is fixed in 1 inner wall department of major structure, flabellum 22 connect with rotatoryly on the support 21, the fluid that contains the particulate matter of test send to the below department of flabellum 22, and pass through when atmosphere monitoring facilities 50's the host computer was worked, the inside sampling air current of major structure 1's sprue blows flabellum 22 is the stirring action to make the fluid that contains the particulate matter of test evenly distributed in the sampling air current. Referring to fig. 1, the bracket 21 is used to suspend the fan blade 22 inside the main body structure 1. When the main machine 50 of the atmosphere monitoring device works, the constant-flow sampling pump works, at this time, a downward (toward the paper filter membrane) sampling airflow with a constant flow rate is generated inside the main structure 1, and the sampling airflow automatically drives the fan blades 22 to perform a stirring action.
It should be noted that, in an embodiment, the fan blade 22 is a passive fan blade, and is passively rotated by the sampling air flow, so that the purpose of the design is to prevent the test particles from generating a downward accelerating falling force due to the rotation of the fan blade 22, and prevent the particles from accelerating to precipitate, i.e. the particles are not blown away and have been previously enriched on the paper filter membrane, so that the test particles are uniformly dispersed on the paper filter membrane as much as possible.
It should be noted that the fan 22 can be rotated, but also can be swung or a combination of swinging and rotating to make the fluid containing the particles for testing uniformly distributed in the sampling air flow, and finally make the particles uniformly spread on the paper filter membrane.
Referring to fig. 1 and 2, the dust feeding device further comprises a dust feeding pipeline 3, an inlet of the dust feeding pipeline 3 is connected with an external dust supply device 200, an outlet of the dust feeding pipeline 3 extends into the main structure 1 and is located below the fan blade 22, it is noted that, as described above, the external dust supply device 200 is used for putting the particulate matters meeting technical requirements of the known weight M0 into the sampling channel, and under the action of the sampling pump, the particulate matters are enriched onto the paper filter membrane through the sampling channel, if the dust distribution device 100 for the atmospheric monitoring device is not additionally installed, the added particulate matters cannot be guaranteed to be uniformly enriched onto the paper filter membrane, and may be locally and largely enriched onto the paper filter membrane, and the particulate matters are not uniformly distributed on the filter membrane, so that the stable operation of the sampling pump is not facilitated, the working resistance of the sampling pump is greatly increased, and in addition, when the weight of the particulate matters is measured through β rays, the accuracy of measurement of the weight of the particulate matters is greatly reduced β.
Referring to fig. 1, the dust feeding pipe 3 is of a flexible structure in the main structure 1. This has the advantage that the dust supply duct 3 can be easily inserted into the main body structure 1 from the outside of the main body structure 1 or extracted from the inside of the main body structure 1. That is, the dust supply pipe 3 can be replaced with a new one without contamination every time a test is performed, thereby preventing cross contamination due to multiple measurements.
In addition, the dust feeding pipeline 3 is located in the main structure 1, and the flexible structure is adopted in the part, so that the fan blades 22 can swing when stirring, and the uniform distribution of particles is facilitated.
Referring to fig. 1, a bearing 23 is further included, and a portion of the dust feeding pipe 3 located in the main body structure 1 passes through an inner ring of the bearing 23 to be connected with the fan blades 22. In this embodiment, the bearing 23 is disposed at the center inside the main body structure 1, so when the dust feeding pipe 3 passes through the inner ring of the bearing 23, it can be ensured that the dust feeding pipe 3 is located at the center inside the main body structure 1, if it is desired that the fan blade 22 can rotate smoothly, the fan blade 22 must also be disposed at the center inside the main body structure 1, and the best design is that the connection between the fan blade 22 and the bracket 21 through the bearing 23 is required to ensure that the fan blade 22 moves smoothly in the circumferential direction without offset in the vertical direction. In this embodiment, the fan 22 rotates to distribute the particles evenly.
Referring to fig. 1, the outlet of the dust feeding pipe 3 is designed to be an inverted trapezoid structure. The reversed trapezoid structure is arranged, the pressure of the fluid which is conveyed out of the dust conveying pipeline 3 and contains the particles for testing can be reduced due to the increase of the volume at the outlet, the downward movement speed of the particles is hopefully reduced, and therefore the particles are more easily blown away and uniformly distributed under the action of the fan blades 22.
In an embodiment, referring to fig. 1 and 2, the present invention further provides a testing apparatus for an atmosphere monitoring device, which is used for testing the atmosphere monitoring device, and is connected to the host of the atmosphere monitoring device, so as to accurately and uniformly provide the host of the atmosphere monitoring device with a fluid containing particulate matter for testing.
The utility model also provides a testing arrangement of atmosphere monitoring facilities for when testing atmosphere monitoring facilities 50, connect on atmosphere monitoring facilities 50's host computer, provide the fluid that contains the particulate matter of test usefulness for atmosphere monitoring facilities 50's host computer uniformly. The atmospheric monitoring device 50, especially an online atmospheric monitoring device, needs to be tested before shipment and periodically during service in order to ensure the accuracy of the test data output by the sampling device and prevent the data of the sampling device from being falsified.
Taking online atmosphere monitoring equipment as an example for illustration, an atmospheric particulate enrichment module is usually arranged in the equipment, specifically, the atmospheric particulate enrichment module is usually a paper filter membrane (hereinafter, the paper filter membrane is exemplarily illustrated), ambient air is sucked into a cutter by a sampling pump at a constant current and is cut into particles meeting the technical requirements, the particles in the ambient air are finally enriched on the paper filter membrane through a sampling channel, the particles enriched on the paper filter membrane are irradiated by β rays in the prior art, at the moment, the β ray intensity is attenuated, and the weight of the particles can be calculated through the determination of β rays.
The particulate cutter is accurate assuming that the particulate cutter has been precisely calibrated before leaving the factory (calibration of the particulate cutter is not within the scope of the present invention). Therefore, when the atmospheric monitoring equipment is calibrated, only the host of the atmospheric monitoring equipment needs to be tested. Before leaving a factory or in the using process of the atmospheric particulate sampling equipment, the reliability, stability and accuracy of the work of the atmospheric particulate sampling equipment need to be tested, and the atmospheric particulate sampling equipment can be placed in a place with the publication number as described in the background technology: 110082270A, application number: 201910439212.2, the name is: the multifunctional linked temperature-equalizing, pressure-equalizing, humidity-equalizing and dust-adding dual-mode gaseous environment simulation system is used for testing.
When a host of an atmosphere monitoring device is tested, the current technology is generally to adjust temperature and humidity parameters of the environment where an atmosphere particulate matter sampling device is located, and in a state of adding dust 0 (namely, no particulate matter is added), β rays detect that the weight of the atmosphere particulate matter accumulated on a paper filter membrane is close to 0, and the difference is within an error allowable range, so as to test the accuracy of the sampling device.
The utility model also provides a testing arrangement of atmosphere monitoring facilities, include:
a dust supply 200 for providing a precise weight of particulate matter-containing fluid for testing;
a dust distributing device 100, wherein the dust distributing device 100 is connected with the dust supplying device 200, in particular to the dust conveying pipeline 3.
Specifically, the method includes the following steps as shown in fig. 1:
the main body structure 1 is a hollow structure, and the main body structure 1 is connected to a host of the atmosphere monitoring equipment 50; specifically, the main body structure 1 is a tubular structure, which can be hermetically connected to the upper end (sampling channel) of the sampling channel of the main body of the atmosphere monitoring device 50, and can uniformly supply dust to the main body of the atmosphere monitoring device 50 instead of a particulate cutter.
In the present invention, "dust" means particulate matter and is supplied in the form of a fluid containing the particulate matter.
In a preferred embodiment, the main body structure 1 has an outer shape conforming to the size of the sampling channel of the main body of the atmosphere monitoring device 50, and preferably is threadably connected to the sampling channel to achieve a sealed and smooth transition connection with the sampling channel, so as not to cause additional resistance to the flow of the fluid containing particles.
A dust dispersing and distributing mechanism 2, the dust dispersing and distributing mechanism 2 is arranged inside the main body structure 1, which comprises
It should be noted that, in an embodiment, the fan blade 22 is a passive fan blade, and is passively rotated by the sampling air flow, so that the purpose of the design is to prevent the test particles from generating a downward accelerating falling force due to the rotation of the fan blade 22, and prevent the particles from accelerating to precipitate, i.e. the particles are not blown away and have been previously enriched on the paper filter membrane, so that the test particles are uniformly dispersed on the paper filter membrane as much as possible.
It should be noted that the fan 22 can be rotated, but also can be swung or a combination of swinging and rotating to make the fluid containing the particles for testing uniformly distributed in the sampling air flow, and finally make the particles uniformly spread on the paper filter membrane.
Referring to fig. 1 and 2, the dust feeding device further comprises a dust feeding pipeline 3, an inlet of the dust feeding pipeline 3 is connected with an external dust supply device 200, an outlet of the dust feeding pipeline 3 extends into the main structure 1 and is located below the fan blade 22, it is noted that, as described above, the external dust supply device 200 is used for putting the particulate matters meeting technical requirements of the known weight M0 into the sampling channel, and under the action of the sampling pump, the particulate matters are enriched onto the paper filter membrane through the sampling channel, if the dust distribution device 100 for the atmospheric monitoring device is not additionally installed, the added particulate matters cannot be guaranteed to be uniformly enriched onto the paper filter membrane, and may be locally and largely enriched onto the paper filter membrane, and the particulate matters are not uniformly distributed on the filter membrane, so that the stable operation of the sampling pump is not facilitated, the working resistance of the sampling pump is greatly increased, and in addition, when the weight of the particulate matters is measured through β rays, the accuracy of measurement of the weight of the particulate matters is greatly reduced β.
Referring to fig. 1, the dust feeding pipe 3 is of a flexible structure in the main structure 1. This has the advantage that the dust supply duct 3 can be easily inserted into the main body structure 1 from the outside of the main body structure 1 or extracted from the inside of the main body structure 1. That is, the dust supply pipe 3 can be replaced with a new one without contamination every time a test is performed, thereby preventing cross contamination due to multiple measurements.
Referring to fig. 1, a bearing 23 is further included, and a portion of the dust feeding pipe 3 located in the main body structure 1 passes through an inner ring of the bearing 23 to be connected with the fan blades 22. In this embodiment, the bearing 23 is disposed at the center inside the main body structure 1, so when the dust feeding pipe 3 passes through the inner ring of the bearing 23, it can be ensured that the dust feeding pipe 3 is located at the center inside the main body structure 1, if it is desired that the fan blade 22 can rotate smoothly, the fan blade 22 must also be disposed at the center inside the main body structure 1, and the best design is that the connection between the fan blade 22 and the bracket 21 through the bearing 23 is required to ensure that the fan blade 22 moves smoothly in the circumferential direction without offset in the vertical direction.
Referring to fig. 1, the outlet of the dust feeding pipe 3 is designed to be an inverted trapezoid structure. The reversed trapezoid structure is arranged, the pressure of the fluid which is conveyed out of the dust conveying pipeline 3 and contains the particles for testing can be reduced due to the increase of the volume at the outlet, the downward movement speed of the particles is hopefully reduced, and therefore the particles are more easily blown away and uniformly distributed under the action of the fan blades 22.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a dispersion cloth dirt device that test atmosphere monitoring facilities used for when testing atmosphere monitoring facilities, connect on atmosphere monitoring facilities's host computer, evenly provide the fluid that contains the particulate matter of test usefulness for atmosphere monitoring facilities's host computer, its characterized in that includes:
the main body structure is a hollow structure and is connected to a host of the atmosphere monitoring equipment;
the dust distribution mechanism is arranged inside a main flow channel of the main structure and comprises a support and fan blades, the support is fixed in the main structure, the fan blades are connected to the support, the fluid containing the particulate matters for testing is conveyed to the position below the fan blades and passes through the main machine of the atmosphere monitoring equipment during working, the sampling air flow inside the main flow channel of the main structure blows the fan blades to perform stirring action, and the fluid containing the particulate matters for testing is uniformly distributed in the sampling air flow.
2. The dust dispersing and distributing device for the test atmosphere monitoring equipment according to claim 1, further comprising a dust feeding pipe, wherein an inlet of the dust feeding pipe is connected with an external dust supply device, and an outlet of the dust feeding pipe extends into the main structure and is positioned below the fan blades.
3. The dust dispersing and distributing device for testing atmosphere monitoring equipment according to claim 2, wherein the part of the dust feeding pipeline located in the main body structure is of a flexible structure.
4. The dust dispersing and distributing device for testing atmosphere monitoring equipment according to claim 2, further comprising a bearing, wherein the part of the dust feeding pipeline located in the main body structure penetrates through the inner ring of the bearing to be connected with the fan blades.
5. The dust dispersing and distributing device for testing atmosphere monitoring equipment according to claim 2, wherein the outlet of the dust feeding pipe is designed to be an inverted trapezoid structure.
6. The utility model provides a testing arrangement of atmosphere monitoring facilities for test atmosphere monitoring facilities, connect on atmosphere monitoring facilities's host computer, accurately, evenly provide the fluid that contains the particulate matter of test usefulness for atmosphere monitoring facilities's host computer, its characterized in that includes:
a dust supply device for providing a precise weight of a particulate matter-containing fluid for testing;
a distributed dust device connected to the dust supply device, comprising:
the main body structure is a hollow structure and is connected to a host of the atmosphere monitoring equipment;
the dust distribution mechanism is arranged inside a main flow channel of the main structure and comprises a support and fan blades, the support is fixed in the main structure, the fan blades are connected to the support, the fluid containing the particulate matters for testing is conveyed to the position below the fan blades and passes through the main machine of the atmosphere monitoring equipment during working, the sampling air flow inside the main flow channel of the main structure blows the fan blades to perform stirring action, and the fluid containing the particulate matters for testing is uniformly distributed in the sampling air flow.
7. The atmospheric monitoring device testing device of claim 6, further comprising a dust feeding pipe, wherein an inlet of the dust feeding pipe is connected with an external dust supply device, and an outlet of the dust feeding pipe extends into the main body structure and is located below the fan blades.
8. The atmospheric monitoring device test apparatus of claim 7, wherein the portion of the dust supply duct located within the main body structure is also suspended at an inner wall of the dust supply duct by a bracket.
9. The atmospheric monitoring device test device of claim 7, further comprising a bearing, wherein the portion of the dust feeding pipeline located in the main structure passes through the bearing inner ring to be connected with the fan blade.
10. The atmospheric monitoring device test device of claim 7, wherein the outlet of the dust feeding pipeline is designed to be an inverted trapezoid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517132.6U CN211148193U (en) | 2019-09-11 | 2019-09-11 | Dust distributing and distributing device for testing atmosphere monitoring equipment and testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517132.6U CN211148193U (en) | 2019-09-11 | 2019-09-11 | Dust distributing and distributing device for testing atmosphere monitoring equipment and testing device |
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| CN211148193U true CN211148193U (en) | 2020-07-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595846A (en) * | 2019-09-11 | 2019-12-20 | 深圳国技仪器有限公司 | Dust distributing and distributing device for testing atmosphere monitoring equipment and testing device |
| CN112816261A (en) * | 2021-01-25 | 2021-05-18 | 黄国兴 | Power system monitoring device |
-
2019
- 2019-09-11 CN CN201921517132.6U patent/CN211148193U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595846A (en) * | 2019-09-11 | 2019-12-20 | 深圳国技仪器有限公司 | Dust distributing and distributing device for testing atmosphere monitoring equipment and testing device |
| CN112816261A (en) * | 2021-01-25 | 2021-05-18 | 黄国兴 | Power system monitoring device |
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